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* srfi-1.scm (fold, fold-pair): Fixed a buggy call to apply.

Browse source 
(delete-duplicates): Now the first occurrence of an element is
	retained, as required.
	(member, assoc): Fixed wrong order of equality predicate
	application.
This commit is contained in:
Martin Grabmüller 2001-06-07 17:54:40 +00:00
parent 5b33ed3df9
commit 563058efbe
2 changed files with 23 additions and 6 deletions
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9
srfi/ChangeLog
View file

@ -1,3 +1,12 @@
2001-06-07 Martin Grabmueller <mgrabmue@cs.tu-berlin.de>
* srfi-1.scm (fold, fold-pair): Fixed a buggy call to apply.
(delete-duplicates): Now the first occurrence of an element is
retained, as required.
(member, assoc): Fixed wrong order of equality predicate
application.
2001-06-06 Martin Grabmueller <mgrabmue@cs.tu-berlin.de>
* README: Update.

20
srfi/srfi-1.scm
View file

@ -57,6 +57,7 @@
;;; Code:
(define-module (srfi srfi-1)
:use-module (ice-9 session)
:use-module (ice-9 receive))
(export
@ -516,7 +517,7 @@
knil
(let ((cars (map car lists))
(cdrs (map cdr lists)))
(f (apply kons cars (list knil)) cdrs))))))
(f (apply kons (append! cars (list knil))) cdrs))))))
(define (fold-right kons knil clist1 . rest)
(if (null? rest)
@ -540,7 +541,7 @@
(if (any null? lists)
knil
(let ((tails (map cdr lists)))
(f (apply kons lists (list knil)) tails))))))
(f (apply kons (append! lists (list knil))) tails))))))
(define (pair-fold-right kons knil clist1 . rest)
@ -806,7 +807,7 @@
(let lp ((l list))
(if (null? l)
#f
(if (l= (car l) x)
(if (l= x (car l))
l
(lp (cdr l)))))))
@ -837,7 +838,14 @@
#t
(lp1 (cdr l2)))))
(lp0 (cdr l1))
(cons (car l1) (cdr l1)))))))
(cons (car l1) (lp0 (cdr l1))))))))
(define (delete-duplicates list . rest)
(let ((l= (if (pair? rest) (car rest) equal?)))
(let lp ((list list))
(if (null? list)
'()
(cons (car list) (lp (delete (car list) (cdr list) l=)))))))
(define (delete-duplicates! list . rest)
(let ((l= (if (pair? rest) (car rest) equal?)))
@ -850,7 +858,7 @@
(let lp ((a alist))
(if (null? a)
#f
(if (k= (caar a) key)
(if (k= key (caar a))
(car a)
(lp (cdr a)))))))
@ -861,7 +869,7 @@
(let lp ((a alist))
(if (null? a)
'()
(cons (cons (caar a) (cdar a)) (lp (cdr a))))))
(acons (caar a) (cdar a) (lp (cdr a))))))
(define (alist-delete key alist . rest)
(let ((k= (if (pair? rest) (car rest) equal?)))